Hey guys, if you’ve ever stayed up too late scrolling through blind box unboxing reels on TikTok, or stood in a convenience store staring at a wall of mystery figures, you know that buzz. I run a blind box toy supply side that gets DMs every single day like, “Wait, how the hell do these little guys get made? It can’t just be someone molding plastic in their garage, right?” Nah, trust me, it’s way more chaotic (and way more precise) than that. Let’s walk through the whole process—from a random character sketch to you yanking a figure out of its sealed plastic bag, and yes, I’ll throw in the behind-the-scenes stuff only someone on the supply end sees. Blind Box Toys

First off, before we even touch plastic or paint, there’s a part of the process most people sleep on: the character design phase that goes way deeper than a cute doodle. I’ve worked with indie creators and big IPs alike, and the best blind box figures start with a solid “backstory” even if most buyers never see it. Last year, we worked with a creator who made a line of forest-themed blind boxes—each figure was a small creature, but she didn’t just draw a bunny. She drew a bunny that got lost on a mushroom foraging trip, with a tiny woven backpack stitched to its side, and that’s the vibe we locked into.
Step one here is concepting, and it’s not just a quick sketch. We’ll do 10+ rounds of tweaks: maybe the backpack got too bulky to mass-produce, or the eyes ended up looking weird tiny, so we shrink them a little. Once everyone’s on board (creator, our design team, the client), we move to 3D modeling. No, it’s not just a hand-drawn thing turned into a digital file—we use programs like Blender or ZBrush to sculpt every detail. Last month, we had a mermaid figure with tiny seashell accents; our 3D artist spent three extra hours adding a tiny scratch to one shell to make it look more “lived-in,” and that’s the kind of tiny touch that makes people drop $15 on a single box.
The next big milestone: mold making. This is where the digital 3D sculpture gets turned into something we can actually pour plastic into. First, we need a master prototype—we use a 3D printer for that, but not the cheap $200 ones you buy at Walmart. We use industrial resin printers that are precise down to 0.1mm, so every finger, every little patch of fur, matches the digital file. Once that master is good, we make a silicone mold from it. Silicone is perfect because it’s flexible, so we can pull the finished plastic figure out without breaking tiny details. Wait, but why silicone and not plastic? Plastic molds would be way too rigid, and you’d have to cut the figure open to get it out, which is a nightmare for a 5,000-piece order. Silicone is reusable, too—we can make 50+ figures from one mold before it starts to wear out.
Now, the part everyone waits for: injection molding. This is where it goes from a digital file to actual plastic. Let me paint the picture: we have giant machines in our factory (I’ve seen them in action, and they sound like a jet engine taking off), and we load them with food-grade, non-toxic PVC or ABS plastic—we never cut corners here, especially since blind boxes end up in kids’ hands. The plastic gets melted down into a liquid, super hot, then injected under massive pressure into that silicone mold we made earlier. The mold cools for a few minutes, and boom—you have a raw, unpainted figure, called a “blank” in the industry.
Wait, but hold on—what about colors? If you’ve ever had a blind box figure that’s a solid red, you know that’s not just plastic with red dye. No, we do multi-color injection now, which is why you might have a figure with a blue body, pink ears, and yellow feet all from one mold. How? We split the mold into parts, inject each color separately, and the plastic fuses together as it cools. That’s way cheaper than painting every figure by hand, and it’s way more consistent.
Next up: the painting phase, which is where most small suppliers mess up, and where we stand out. This is super precise, because tiny mistakes make a figure look cheap. We used to do all hand-painting, but that’s impossible for big orders—if you have 10,000 figures, one painter can’t do that without making 100+ mistakes. Now we use automated pad printers. Pad printing is this weird, cool tech where a silicone pad picks up paint from a raised stencil, then presses it onto the figure. It works for tiny details like eyes, lips, little logos on shirts—all the stuff you can’t do with spray paint. But wait, even with machines, we have human checkers. For every 1,000 figures, one person sits there and goes “That eye’s smudged, that ear is painted off,” and tosses them. Last quarter, we rejected 8% of a batch because of tiny paint mistakes—people can tell, even if they don’t know why.
Then there’s the base. Almost every blind box figure has a little plastic base, right? So it doesn’t tip over. We mold those the same way as the figures—some bases have tiny wheels, some have little heart shapes, depending on the line. Once the figure is painted, we snap it onto its base, and that’s the full toy, kind of.
Now, the part that makes it a “blind box,” not just a toy: the packaging. This is a huge part of the experience, and people sleep on it. First, each figure gets wrapped in a tiny plastic bag—sealed, so you can’t see what’s inside. Then, it goes into a cardboard box, usually with a little sticker of the character on the outside. But here’s the thing: we never, ever tell anyone which figure is which. We mix them randomly, that’s the whole point. We have a “weight system” sometimes? No, wait—some bad actors do that, but we don’t. We use a randomizer software that assigns each figure a number, then packs the boxes accordingly. So if you buy a 12-pack, you should get one of each figure roughly evenly (no, we don’t “hide” rare figures better—that’s a myth we hate).
Wait, let’s talk about those rare chase figures, because that’s what drives people crazy about blind boxes. A chase figure is super rare—like, 1 in 100 boxes, sometimes 1 in 500. How do we do that? When we pack the boxes, we assign a certain number of chase figures. We might make 50 chase figures for a 5,000-piece order, so when the software runs, it marks 50 boxes as having the chase figure, and the rest as having regular ones. We never, ever slip chase figures to our friends or retailers for personal sales—that’s how you ruin the trust, and trust is everything in this industry.
Quality control is the make-or-break step, and it’s not just one check. We do three checks total: first, when the raw blanks come out of the mold, to make sure no bubbles or warps. Second, after painting, to make sure no smudges or missing details. Third, after packaging, to make sure the figure is snapped in, the bag is sealed, no missing parts. Last year, a client had a batch where 12 figures had tiny broken ears—we caught it at the second check, pulled all bad ones, redid them, and delivered on time. That’s the kind of stuff that keeps brands coming back.
Now, let’s talk about sustainability, because that’s a question we get a lot lately. We used to use a lot of plastic for packaging, but now we’ve switched to 100% recyclable cardboard for boxes, and the plastic bags are made from recycled plastic. Also, we only use food-grade plastic for the figures—no toxic stuff, especially since so many buyers are teens who might chew on the little figures. We even donate excess mold material to a local art program for kids, so nothing goes to waste.
Wait, I should also mention the part that happens before production ramps up: sampling. We send out 10 or so prototype figures to the creator, the brand, and a few test buyers, right? Because what looks good on a 3D model might look terrible in real life. Last year, we had a space-themed figure that had a tiny flag on its arm—when it was made in plastic, the flag looked too flimsy, like it would break if you looked at it. We went back to the 3D model, thickened the flag, and re-sampled. That’s why sampling is non-negotiable—you don’t want to make 10,000 of something no one likes.
Let me wrap this up with the stuff people don’t see: the behind-the-scenes chaos. Last month, we had a 10,000-piece order due in two weeks, and one of the injection machines broke down. Our whole team pulled 12-hour shifts for three days, fixed the machine, and got it done on time. This isn’t some fancy factory in a foreign country where no one cares—we have local team members who care about every figure going out good. We work with indie creators, small toy brands, and even big companies like that one you see at Target, and every single one of them cares as much as we do about getting it right.

If you’re a brand, a retailer, or even an indie creator looking to launch a blind box line, we can walk you through every step—from the first sketch to the final box in a customer’s hand. No jargon, no hidden fees, just people who know this process inside and out, because we live it every day. Drop us a line to talk about your next project—we’re here to make it happen, no matter how big or small.
Promotional Plush Toys References:
- "Blind Box Toy Manufacturing: A Comprehensive Guide to Design, Production, and Quality Control" – Toy Industry Association, 2022
- "Injection Molding for Small Plastic Parts: Best Practices for Toy Production" – Plastics Engineering Magazine, 2023
- "Sustainable Practices in Collectible Toy Manufacturing" – Global Toy News, 2024
Shenzhen Newhorse Toys Co., Ltd.
Shenzhen Newhorse Toys Co., Ltd. is one of the most professional blind box toys manufacturers and suppliers in China. We have world-leading production equipment and strong manufacturing capabilities. Please feel free to buy bulk blind box toys at competitive price from our factory. Welcome to contact us for quotation and free sample.
Address: Room 101, Building 2, Fuguangyuan Factory, No.105 Longhu Road, Longdong Community, Baolong Subdistrict, Longgang District,Shenzhen,Guangdong, China
E-mail: info@newhorsetoys.com
WebSite: https://www.newhorsetoys.com/